# CVE-2023-28368: Weak cryptography in T2600G-28SQ

> Weak SSH host keys allow attackers to spoof the device and steal administrator credentials if the admin logs into the fake device.

- **Severity:** Medium 5.7 (`CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Local or same network only
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 11 Apr 2023
- **Updated:** 10 Feb 2025
- **Also known as:** GHSA-pvv5-5wph-88cq

## What is CVE-2023-28368?

CVE-2023-28368 is a medium-severity vulnerability in TP-Link Corporation Limited T2600G-28SQ, published on 11 Apr 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

### Official description

TP-Link L2 switch T2600G-28SQ firmware versions prior to 'T2600G-28SQ(UN)_V1_1.0.6 Build 20230227' uses vulnerable SSH host keys. A fake device may be prepared to spoof the affected device with the vulnerable host key.If the administrator may be tricked to login to the fake device, the credential information for the affected device may be obtained.

Weakness: CWE-1391 (Use of Weak Credentials)

## Which versions are affected by CVE-2023-28368?

It affects 1 product.


Products: Tp-Link T2600g-28sq Firmware.

## How do I fix CVE-2023-28368?

No fix has been published for CVE-2023-28368 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-28368 being exploited?

There is no known exploitation of CVE-2023-28368 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-28368 and fix it if it is affected.

What it is: CVE-2023-28368 is a medium-severity vulnerability in TP-Link Corporation Limited T2600G-28SQ, published on 11 Apr 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2023-28368 in the wild and no public exploit code.

Affected product: TP-Link Corporation Limited T2600G-28SQ. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2023-28368/ (Markdown: https://insights.sbomify.com/CVE-2023-28368/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-28368
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-28368
- OSV: https://osv.dev/vulnerability/CVE-2023-28368

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-28368/
Summaries are generated and may contain mistakes; the official description above is the record.